I just spent 5min looking for usage of the word "heaviosity", which appealingly sounds and seems likes a real word, but in fact doesn't seem to be one. Perhaps the author used a seemingly deep, but incorrect, word as a way to poke fun at literary critics. Perhaps the word doesn't exist and the author just made a mistake. Or, perhaps the word is used by certain groups of of people, but it hasn't shown up on the web.
I despise this idea that a word can't be "real" unless it is accepted in some "official" form (which has now spread to include websites of slang, etc...)
Even if "heaviosity" is totally made up on the spot and never before uttered, its meaning is clear - and conveying meaning with utterances is the point of language.
